Abstract：
BACKGROUND:Colonoscopy plays an important role in the clinical screening and management of colorectal cancer. The traditional 'see one, do one, teach one' training style for such invasive procedure is resource intensive and ineffective. Given that colonoscopy is difficult, and time-consuming to master, the use of virtual reality simulators to train gastroenterologists in colonoscopy operations offers a promising alternative. METHODS:In this paper, a realistic and real-time interactive simulator for training colonoscopy procedure is presented, which can even include polypectomy simulation. Our approach models the colonoscopy as thick flexible elastic rods with different resolutions which are dynamically adaptive to the curvature of the colon. More material characteristics of this deformable material are integrated into our discrete model to realistically simulate the behavior of the colonoscope. CONCLUSION:We present a simulator for training colonoscopy procedure. In addition, we propose a set of key aspects of our simulator that give fast, high fidelity feedback to trainees. We also conducted an initial validation of this colonoscopic simulator to determine its clinical utility and efficacy.
journal_name
Biomed Eng Onlinejournal_title
Biomedical engineering onlineauthors
Wen T,Medveczky D,Wu J,Wu Jdoi
10.1186/s12938-018-0433-4subject
Has Abstractpub_date
2018-01-25 00:00:00pages
9issue
1issn
1475-925Xpii
10.1186/s12938-018-0433-4journal_volume
17pub_type
杂志文章abstract：BACKGROUND:The replacement of hard tissues demands biocompatible and sometimes bioactive materials with properties similar to those of bone. Nano-composites made of biocompatible polymers and bioactive inorganic nano particles such as HDPE/HA have attracted attention as permanent bone substitutes due to their excellent...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-95
更新日期：2013-09-24 00:00:00
abstract：BACKGROUND:The lumbar range of motion has traditionally been used to assess disability in patients with low back disorders. Controversy exists about how movement ranges in static positions or in a single straight plane is related to the functional status of the patients. The trunk circumduction, as the result of neurom...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-4
更新日期：2013-01-11 00:00:00
abstract：BACKGROUND:Mitral valve failure can require repair or replacement. Replacement bioprosthetic valves are treated with glutaraldehyde prior to implantation. The aim of this study was to determine the changes in mechanical properties following glutaraldehyde fixation of mitral valve chordae. METHODS:To investigate the im...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-018-0524-2
更新日期：2018-07-13 00:00:00
abstract：BACKGROUND:Tumor hypoxia is involved in every stage of solid tumor development: formation, progression, metastasis, and apoptosis. Two types of hypoxia exist in tumors-chronic hypoxia and acute hypoxia. Recent studies indicate that the regional hypoxia kinetics is closely linked to metastasis and therapeutic responses,...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-016-0235-5
更新日期：2016-10-12 00:00:00
abstract：BACKGROUND:The emergence and development of robot assistant interventional vascular surgery technologies have benefited many patients with cardiovascular or cerebrovascular diseases. Due to the absence of effective training measures, these new advanced technologies have not been fully utilized and only few experienced ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-016-0148-3
更新日期：2016-04-06 00:00:00
abstract：BACKGROUND:Understanding aneurysm growth rate allows us to predict not only the current rupture risk, but also accumulated rupture risk in the future. However, determining growth rate of unruptured intracranial aneurysms often requires follow-up of patients for a long period of time so that significant growth can be ob...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-8-11
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-015-0097-2
更新日期：2015-10-29 00:00:00
abstract：BACKGROUND:Many studies have demonstrated that the geometry of the carotid bifurcation enables prediction of blood flow variation associated with atherosclerotic plaque formation. The phase angle between the arterial wall circumferential strain and its instantaneous wall shear stress is known as stress phase angle (SPA...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-018-0458-8
更新日期：2018-03-02 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-11-9
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-10-83
更新日期：2011-09-23 00:00:00
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journal_title：Biomedical engineering online
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1186/s12938-017-0387-y
更新日期：2017-08-02 00:00:00
abstract：BACKGROUND:This study investigates CAD/CAM ceramic cusp-replacing restoration resistance with and without buccal cusp replacement under static and dynamic cyclic loads, monitored using the acoustic emission (AE) technique. METHOD:The cavity was designed in a typical MODP (mesial-occlusal-distal-palatal) restoration fa...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-165
更新日期：2014-12-13 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章,撤回出版物
doi：10.1186/s12938-020-0749-8
更新日期：2020-01-24 00:00:00
abstract：BACKGROUND:Wound healing of retinal pigment epithelium (RPE) is a complex process that may take place in common age-related macular degeneration eye disease. The purpose of this study was to evaluate whether wounding and wound healing has an effect on Ca2+ dynamics in human embryonic stem cell (hESC)-RPEs cultured diff...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-018-0535-z
更新日期：2018-07-31 00:00:00
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pub_type： 杂志文章
doi：10.1186/1475-925X-9-51
更新日期：2010-09-15 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-22
更新日期：2014-02-27 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-10-87
更新日期：2011-09-28 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-14-S3-S3
更新日期：2015-01-01 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925x-1-5
更新日期：2002-11-13 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
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journal_title：Biomedical engineering online
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-018-0497-1
更新日期：2018-05-30 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
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更新日期：2007-09-26 00:00:00
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journal_title：Biomedical engineering online
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更新日期：2007-05-31 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925x-1-8
更新日期：2002-12-19 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
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更新日期：2019-05-20 00:00:00
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journal_title：Biomedical engineering online
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更新日期：2015-12-21 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
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